Baling-press



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BALING PRESS.

Patented Oct. 25, 1892.

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(No Model.) 3 Sheets-Sheet 2.

G. E. WHITMAN.

BALING PRESS.

No. 485,072. Patented Oct. 25, 1892..

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No. 485,072. Patented Oct. 25, 1892.

UNITED STATES PATENT OFF CE.

CHARLES E. WHITMAN, OF ST. LOUIS, MISSOURI.

BALlNG-PRESS.

SPECIFICATION forming part of Letters Patent No. 485,072, dated October25, 1892.

Application filed April 22, 1892. Serial No. 430,258- (No model.)

To aZZ whom it may concern: 1

Be it known that 1, CHARLES E. WHITMAN, of the city of St. Louis, in theState of Missouri, have invented a certain new and useful Improvement inBaling-Presses, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, formingpartof this specification.

My invention relates to certain improve ments in presses of thecontinuous type for baling hay, straw, eXcelsior, and the like; and myinvention consists in features of novelty hereinafter fully described,and pointed out in the claims.

Figure I is a top view of the power end of my improved press. Fig. II isa side elevation of same. Fig. III is a section taken on line III III,Fig. IV. Fig. IV is a section taken on line IV IV, Fig. III. Fig. Vrepresents a modification of the construction shown in Figs. III and IV.Fig. VI is an enlarged top view of the power-head. Fig. VII is a topview of the central portion of the press, and Fig. VIII is an elevationof same.

Referring to the drawings, 1 represents a beam connecting thebaling-chamber 2 to the power portion of the press.

3 is the sweep, and at the power-head, mounted on a shaft or heavy rod5. The sweep and head are connected in any suitable manner,

so as to turn together on the shaft or rod 5.

6 is the pitman, secured to the plunger 7, as usual, and its outer endis formed with an inner shoulder 8 and an outer shoulder 9.

The power-head 4 is peculiar in its construction. (See Fig. VI.) It hastwo outer bearing-points 10, preferably armed with rollers 11, and twoinner bearing-points 12, preferably armed with rollers 13. In theoperation of the press as the power-head is moved by the sweep one ofthe points 10 comes against the shoulder 8 of the pitman, forcing thepitman and plunger forward with a rapid movement. Just before the point10 leaves the shoulder 8 one of the points 12 comes against the shoulder9 of the pitman and completes the movement of the plunger with a slowand powerful pressure, and just before the pitman is brought into linewith the center of motion of the power-head its extreme end 15 comes incontact with the power-head at about the point marked a, which causesthe pitman to be disengaged from the powerhead, permitting the plungerto recede under the back expansion of the compressed material, which maybe assisted by a spring 17, the pitman returning on the same side of thepress, and in its backward movement all danger of its striking thepoints 10 is prevented by projections or corners 18 on the powerhead,which will ward the pitman 06 from the bearing-points 10. The furthermovement in the same direction of the sweep and cross-head will bringthe next points 10 and 12 into engagement with their shoulders 8 and 9on the pitman, and the action described is repeated, one revolution ofthesweep effecting two forward movements of the plunger.

The device is an exceedingly strong, cheap, and durable one, as well asvery effective, as has been found by practical tests.

Should the plunger and pitman fail to return to the limit of theirbackward movement there might be danger of the bearing-points 1Oengaging the shoulder 9 of the pitman, and to avoid any danger of thiskind I put a cam 19 on the end of the pitman, (this cam is out of thepath of the bearing-points 12,) against which the parts I) of thepower-head will strike, and by forcing the pitman laterally will preventthe bearing-points 10 from engaging the shoulder 9. To permit thislateral movement, of the pitman at such times, I employ a device Whichin its preferred form consists of an arm 21, pivoted to the pitman at 22and connected at its other end (see Figs. I, III, and IV) to a block 23,mounted on a rod 24:, one end of which is secured by a bracket 25 to thebeam 1. The other end of the rod fits in aslot 26 of a casting 27,secured to the beam 1, the casting having a socket 28, in which fits aspring 29, that tends to hold the rod 24: away from the pitman G. Theblock 23 is held against the casting 27 (or against a washer 30, whichbears against the casting 27) by means of a spiral spring 31,surrounding the rod 24, this spring permitting a slight movement of theblock on the rod when necessary. It will thus be seen that should thepart Z2 come against the cam 29 the outer end of the pitman will beforced laterally and will then be drawn back to its normal position bythe spring 29, acting through the rod 24, block 23, and arm 21.

In Fig. V, I have shown a modification of the spring 29, which consistsin forming the arm 21 in two parts, oneof the parts having a socket 32to receive the end of the other part and a spring 33, the part ofthe armfitting in the socket having a head 34, between which and a nut 35 onthe socket part of the arm the spring 33 bears. In this construction thespring 38 will yield to the lateral movement of the pitman and will drawthe pitman back to its normal position.

The plunger 7 of the press is provided with a stop extension 40, towhich a leaf 41 is hinged at 42. The extension 40 is pivoted to theplunger, as shown at 43, so that it will move freely'in the frame of thepress and so that any twisting of the plunger will not be transmitted tothe extension or to the leaf 41, The leaf 41 has cam-shaped sides 44,which as-the plunger is forced into the press come against cleats 45,secured to the inner wall of the baling-chamber, as shown in Fig. VIIIand by dotted lines in Fig. VII. It will thus be seen that as theplunger is forced inwardly the leaf 41 will be raised up into ahorizontal position and will close the mouth of the hopper 46 while theplunger is in its forward po-v sition, thus avoiding the possibility ofmate-. rial entering the baling-chamber behind the plunger.' Then as theplunger recedes the leaf 41 will drop down into the position shown inFig. VIII, thus shortening up the press and. permitting thedraft-animals to step over the beam and pitman close up to thebaling-cham- I ber of the press.

47 represents a roller, upon which the Outer end of the pitman rides andis supported from vertical movement.

I claim as my invention- 1. In a full-circle baling-press, the combi:nation of a baling-chamber, a plunger, a pitman having a cam and aplurality of shoulders on its outer end, a sweep, and a powerhead havingmeans to engage said earn and having a plurality of bearing-points oneach side of its center, which are arranged to. suecessively engage theshoulders of the pitman, said cam being out of the line of movement ofsaid bearing-points, substantially as and for the purpose set forth.

2. In a full-circle baling-press, the combi nation of a paling-chamber,a plunger, a pitman having an inner and an outer shoulder and a point15, a sweep, and a power-head,

man having an inner andan outer shoulder,

a cam secured to the pitman at the outer shoulder, a sweep, and apower-head, said power-head having an inner and outer bearing-point oneach side of its center and having a part b for engaging said cam of thepitman, substantially as and for the purpose set forth.

4. In a full-circle baling-press, the combination of the baling-chamber,a plunger, a pitman having an inner and outer shoulder, and a camon thepitman secured thereto at the outer shoulder, a' spring-actuated armconnecting the pitman to the frame of the press, a sweep, and apower-head, said pewerrhead having an inner and outer bearing-point oneach side of its center and having a part b for engaging said cam,substantially as and for the purpose set forth. I

5 In a fullrcircle baling-press, the combination of a balingwchamber, aplunger, a pitman having an inner and outer shoulder, and a cam locatedat the outer shoulder, an arm pivoted to the pitman, a spring-actuatedrod to which the arm is connected, a sweep, and a power-head havinginner and outer hearing points on each side of its center, and a part bfor engaging said cam, substantially as and for the purpose set forth.

6, In a full-circle balingrpress, the combination of a baling-chamber, aplunger, a pitman having an inner and an outer shoulder, an arin'pivotedto the pitman at one end, a rod upon which the other end of said arm ismounted, a spring 31, located on said rod, a sweep, and a power-headhaving inner and outer bearing-points for engaging the, shoulders on thepitman, substantially as and for the purpose set forth.

Z. In a haling-press, the combination of a baling-chamber, a plunger,means for moving the plunger, an extension pivoted to the plunger, aleaf hinged to the extension and provided with cannshaped sides, andcleats against which the cams of the leaf impinge, substantially as andfor the purpose set forth.

CHARLES E. WHITMAN. In presence, of-

ED. KNIGHT, A. M. EBERSOLE.

